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Tìm thấy 20+ kết quả cho từ khóa "Drinking water"

A review of Giardia lamblia in drinking water

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This shows that water management authorities should monitor drinking water sources closely and ensure that parasite-free water is supplied to the public.. Methods to detect Giardia in drinking water are continually being improved, and molecular methods in particular become a powerful tool for detection of Giardia. Biology of Giardia lamblia. Outbreak of giardiasis associated with a community drinking water source.

Scientific background and methodology adopted on derivation of regulatory limit for uranium in drinking water – A global perspective

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Guidelines for Drinking Water Quality, 1, 1st ed. Guidelines for Drinking Water Quality, 1, 2nd ed World Health Organization . Guidelines for Drinking Water Quality, 2nd ed. Guidelines for Drinking-Water Quality, 3rd ed. Guidelines for drinking-Water Quality, 4th ed. Uranium in Drinking Water, Background Document for Development of WHO Guidelines for Drinking Water Quality. Guidelines for drinking-water quality, 4th ed.

An overview of the drinking water supply situation in the Mekong river delta, Vietnam

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AN OVERVIEW OF THE DRINKING WATER SUPPLY SITUATION IN THE MEKONG RIVER DELTA, VIETNAM. All the people living in the Delta have to depend totally on the water resources, mainly the surface water, for domestic drinking, crop irrigating, fish-shrimp raising, goods transporating and industrial producing. As a general rule, any increase in industrial and agricultural activity from upstream may affect to water quality problems more or less in the downstream..

Pesticide removals in the nitrifying expanded-bed filter at drinking water treatment plant

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PESTICIDE REMOVALS IN THE NITRIFYING EXPANDED-BED FILTER AT DRINKING WATER. The pesticide removals observed in the field reactor was speculated to be the adsorption on the suspended solids presented in the influent water. The obtained results highlighted the need to apply a more efficient and cost-effective technology to remove the pesticide in the drinking water treatment process.. drinking water treatment.

Analysis of emerging contaminants: A case study of the underground and drinking water samples in Chandigarh, India

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Analysis of emerging contaminants: A case study of the underground and drinking water samples in Chandigarh, India. drinking water of Chandigarh to analyse the health risk associated with the spread of emerging contaminants in the water sources.

Rapid and on-site electrochemical detection of bisphenol A and arsenic in drinking water using a novel electrode array

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Rapid and on-site electrochemical detection of bisphenol A and arsenic in drinking water using a novel electrode array. Abstract: The paper describes a novel dip-and-gauge hand-held sensor device for the rapid, cost-effective, and on-site detection of bisphenol A and arsenic in drinking water samples. The sensor was employed for the chronoamperometric detection of bisphenol A and voltammetric determination of arsenic in drinking water samples..

Arsenic speciation in titanium dioxide (TiO2) waste produced via drinking water filtration: Potential environmental implications for soils, sediments, and human health

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This study illustrates how As accumulated in the solid-phases of TiO 2 drinking water filter waste and has been distributed on soil surfaces ad- jacent to water treatment facilities, residential areas, and nearby agri-. These results have implications at the local, regional and international scales due to the widespread problem of As in the environment ( Bang et al., 2005 . Inorganic forms of As can be found in drinking water in the form of arsenate [As(V)] or arsenite [As(III.

Superparamagnetic nanoadsorbents for the removal of trace As(III) in drinking water

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The World Health Organization (WHO) clas- sifies exposure to arsenic as a major public health concern because a wide range of human ailments such as: skin lesions, peripheral neu- ropathy, diabetes, cardiovascular diseases, cancer, renal system effects, among others, are linked to long-term drinking water arsenic exposure ( Benramdane et al., 1999. membrane filtration ( Wickramasinghe et al., 2004 . Ballinas et al., 2004 . sorption ( Benjamin et al., 1996 .

Environmental impact assessment of natural radioactivity and heavy metals in drinking water around Akkuyu Nuclear Power Plant in Mersin Province

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Guidelines for Drinking-Water Quality, fourth ed

Water Quality of Havsa Stream Basin Creeks

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Class water quality in terms of TDS values [24], the recorded TDS and salinity levels in the downstream were significantly higher that detected in the upstream. According to the Water Pollution Control Regulation criteria in Turkey [18], Havsa Stream Basin creeks have I. Class water quality in terms of nitrate, sulphate and TOC parameters and nitrate and sulphate concentrations in water of the basin did not exceed the drinking water limits [19, 21].

Is your water safe to drink ?

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If the paper strip and the water sample are noticeably black then there is a very high risk of bacterial contamination in the drinking water, therefore, it is not safe for drinking.. If there is a fast reaction, that is the water sample and paper strip turns black overnight, there is a high probability of bacteria present. Your water is contaminated! You should clean out your water storage containers, tanks or well and boil the water before you drink it.

Governing Water

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Ask each group to draw their water source in the middle of the newsprint. Ask each group to present their drawings to the rest of the group and encourage discussion and questions. What are some of the factors that might affect drinking water supplies?. Purpose: Identify the condition of the community water source.. The next step is to do water quality testing of the water source. group members take samples of the water and test it using the water test kits..

Water desalination - Phần 3

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In Proceedings of the American Water Works Association, Water Quality Technology Conference. Proceedings of the National Groundwater Association, 2 nd International Conference on Pharmaceuticals and Endocrine Disrupting Chemicals in Water, October Minneapolis, Minnesota. 2002 Edition of the Drinking Water Standards and Health Advisories. Journal of the American Water Works Association . Gagliardo, P., and H. In Proceedings of the Water Reuse &.

Magnetically recoverable nanoparticles for the simultaneous removal of Sb and As from water

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Suggestively, operation of the system using a natural water with pH 7 containing 50 𝜇g/L As(V) and 10 𝜇g/L Sb(V) showed successful decrease of residual concentra- tions below regulation limits for drinking water and 100% recovery of the solid when a nanocomposite’s dose of 20 mg/L was added.. Schwarzenbach et al., 2010 . Wells et al., 2010.

A novel bio-physical approach for perchlorate contaminated well water treatment

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There are several reports on IX membranes treating ClO 4 ¯ contaminated drinking water ( Lehman et al., 2008 . Sanyal et al., 2015. Ion exchange membranes with higher affinity for ClO 4 ¯ was reported recently ( Li et al., 2020.

Water quality management for irrigation in the mekong river delta, Vietnam

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Dry season: The monthly mean discharge in the Mekong river is lower than 2,500 m 3 /s, during January to April, together with the lower groundwater table lead to a serious shortage of fresh water for rice cultivation and domestic drinking water. Salinity intrusion areas expand throughout the MD. The lower water level in the dry season is also. contributing to the oxidization of the pyrite horizon with its acidification of soils.

Special Topics

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Arsenic: Common Drinking Water Contaminant. WHO drinking water standard 10 ug/L. As in the United States. An Arsenic in drinking water public health emergency.. “clean” drinking water. In the early 1970s, most of Bangladesh's rural population got its drinking water from surface ponds and nearly a quarter of a million children died each year from water-borne diseases.. Find alternate sources of safe drinking water..

Challenges of water resources management for downstream livelihood of the lower Mekong delta, VietNam

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Because of downstream location, improvement of water quality is big challenge of people in Tien Giang. Access to drinking water is the first priority for the use of water. However, on quarter of the world ’ s population is without access to safe drinking water and half of the population is without access to adequate sanitation (Danida, 2000). In the East of Tien Giang, Go Cong area, one third of domestic water is from ground water, the rest is from surface water of Cua Tieu River mouth.

Evaluation of removal efficiency of Fe(III) and Al(III) ions in acid sulfate water using agarose-based magnesium oxide composite

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Maheshwari (2006), “Fluoride in drinking water and its removal”, Journal of Hazardous Materials, 137(1), pp.456-463.. “Pilot study on arsenic removal from groundwater using a small- scale reverse osmosis system-towards sustainable drinking water production”, Journal of Hazardous Materials, 318, pp.671-678.. “Application of reverse osmosis to reduce pollutants present in industrial wastewater”, Desalination, 155(2), pp.101-108..

Measurements of heavy metals and natural radioactivity levels in water, soil and vegetation around the titanium mining site in Phu Cat district, Binh Dinh province

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Natural radioactivity levels in water, soil and vegetation around the titanium mining site has been measured using gamma-ray spectrometry with NaI (Tl) detector and flame atomic absorption spectrophotometer. Its findings point should consider the radioactivity in titanium mining area.. The results of heavy metal concentrations in the ground water showed the presence of heavy metals with arsenic concentrations above their natural range in the drinking water. titanium mining sites”.